Cell Biolabs’ SARS-CoV-2 Spike Protein S1 ELISA Kit is an enzyme immunoassay developed for the detection and quantitation of SARS-CoV-2 Spike Protein (S1 subunit). The kit has a detection sensitivity limit of 31.3 ng/mL spike protein. Each kit provides sufficient reagents to perform up to 96 assays including standard curve and unknown samples.